#64B4DD#64B4DD

#64B4DD is a light, moderate cyan. Relative luminance 0.406; OKLCH L 73.5% C 0.099 H 232.6°. Best body text is #000000 at 9.11:1 contrast (WCAG AA passes).

Color values

HEX	#64B4DD
RGB	rgb(100, 180, 221)
HSL	hsl(200, 64%, 63%)
HSV	hsv(200, 55%, 87%)
CMYK	cmyk(54.8%, 18.6%, 0%, 13.3%)
CIE-LAB	lab(69.87, -13.05, -28.10)
CIE-LCH	lch(69.87, 30.98, 245.09°)
OKLab	oklab(73.48% -0.0598 -0.0783)
OKLCH	oklch(73.48% 0.099 232.6)
XYZ	xyz(34.6230, 40.5692, 74.3987)
Luminance	0.4057 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64B4DD #DD8D64

analogous

#64DDCA #64B4DD #6477DD

triadic

#64B4DD #DD64B4 #B4DD64

tetradic

#64B4DD #CA64DD #DD8D64 #77DD64

square

#64B4DD #CA64DD #DD8D64 #77DD64

split-complementary

#64B4DD #DD6477 #DDCA64

monochromatic

#2478A3 #329CD2 #64B4DD #96CCE8 #C8E5F3

Accessibility & contrast

On white

2.30

#64B4DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.11

#64B4DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B4DD

9.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64B4DD	#FFFFFF	#000000	##000000
##64B4DD	1.00	2.30	9.11	9.11
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.11	21.00	1.00	1.00
##000000	9.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0B2DF

Deuteranopia (green-blind)

#8FA5DC

Tritanopia (blue-blind)

#00BFC1

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #64b4dd;
/* rgb */ color: rgb(100, 180, 221);
/* oklch */ color: oklch(73.5% 0.099 232.6);

Tailwind

colors: {
  custom: {
    50: '#99cae7',
    500: '#64b4dd',
    950: '#000000',
  },
}

SCSS

$custom: #64b4dd;
$custom-light: #99cae7;
$custom-dark: #000000;

JSON

{
  "hex": "#64b4dd",
  "rgb": {
    "r": 100,
    "g": 180,
    "b": 221
  },
  "hsl": {
    "h": 200.331,
    "s": 64.021,
    "l": 62.941
  },
  "oklch": {
    "l": 0.73479,
    "c": 0.09853,
    "h": 232.6
  },
  "luminance": 0.40572
}

Semantic roles & 50–950 ramp

primary

#64B4DD

secondary

#E4C7B9

accent

#561ACC

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #64B4DD

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →